Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:29:48

Orbital Elements for HU972
WDS: HU972 WDS ID/Discoverer
P: 150.810 Orbital period (years)
a: 0.321 Semi-major axis (arcseconds)
i: 47.3 Inclination (degrees)
Ω: 189.1 Longitude of ascending node (degrees)
T: 1963.650 Epoch of periastron passage (year)
e: 0.633 Eccentricity
ω: 276.1 Longitude of periastron (degrees)
Start-Year: 1950.0 Year
End-Year: 2100.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU972
Position: 215104.93+665014.7 Epoch-2000 right ascension and declination
WDS-ID: 21511+6650 WDS designation
Discoverer Code: HU972 Discover designation and components
ADS number: 15398 Aitken Double Star catalog
HD number: 208074 HD catalog number
Hipparcos number: 107855 Hipparcos catalog number
V1: 9.09 Magnitude of the primary
V2: 9.54 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HU972



WDS 6th Orbit including measures of HU972

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of HU972
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.347    273.5
-------------------------
1950.0     0.235      1.4
1951.0     0.225      3.9
1952.0     0.216      6.5
1953.0     0.205      9.4
1954.0     0.194     12.7
1955.0     0.182     16.4
1956.0     0.169     20.6
1957.0     0.155     25.5
1958.0     0.140     31.5
1959.0     0.125     38.8
1960.0     0.110     48.2
1961.0     0.097     60.4
1962.0     0.086     76.0
1963.0     0.080     95.0
1964.0     0.082    114.9
1965.0     0.089    132.9
1966.0     0.101    147.2
1967.0     0.115    158.4
1968.0     0.129    167.1
1969.0     0.143    174.1
1970.0     0.156    179.8
1971.0     0.169    184.7
1972.0     0.180    189.0
1973.0     0.190    192.8
1974.0     0.200    196.1
1975.0     0.209    199.2
1976.0     0.217    202.1
1977.0     0.225    204.7
1978.0     0.232    207.2
1979.0     0.238    209.5
1980.0     0.244    211.8
1981.0     0.250    213.9
1982.0     0.255    215.9
1983.0     0.260    217.9
1984.0     0.265    219.7
1985.0     0.269    221.6
1986.0     0.273    223.3
1987.0     0.277    225.0
1988.0     0.280    226.7
1989.0     0.284    228.3
1990.0     0.287    229.9
1991.0     0.290    231.4
1992.0     0.293    233.0
1993.0     0.296    234.4
1994.0     0.299    235.9
1995.0     0.301    237.3
1996.0     0.304    238.7
1997.0     0.306    240.1
1998.0     0.308    241.5
1999.0     0.311    242.9
2000.0     0.313    244.2
2001.0     0.315    245.5
2002.0     0.317    246.8
2003.0     0.318    248.1
2004.0     0.320    249.3
2005.0     0.322    250.6
2006.0     0.324    251.8
2007.0     0.325    253.1
2008.0     0.327    254.3
2009.0     0.328    255.5
2010.0     0.330    256.7
2011.0     0.331    257.8
2012.0     0.333    259.0
2013.0     0.334    260.2
2014.0     0.335    261.3
2015.0     0.337    262.5
2016.0     0.338    263.6
2017.0     0.339    264.7
2018.0     0.340    265.9
2019.0     0.341    267.0
2020.0     0.342    268.1
2021.0     0.343    269.2
2022.0     0.345    270.3
2023.0     0.346    271.3
2024.0     0.347    272.4
2025.0     0.347    273.5
2026.0     0.348    274.6
2027.0     0.349    275.6
2028.0     0.350    276.7
2029.0     0.351    277.7
2030.0     0.352    278.8
2031.0     0.353    279.8
2032.0     0.353    280.9
2033.0     0.354    281.9
2034.0     0.355    282.9
2035.0     0.355    283.9
2036.0     0.356    285.0
2037.0     0.357    286.0
2038.0     0.357    287.0
2039.0     0.358    288.0
2040.0     0.358    289.0
2041.0     0.359    290.0
2042.0     0.359    291.0
2043.0     0.360    292.0
2044.0     0.360    293.0
2045.0     0.360    294.0
2046.0     0.361    295.0
2047.0     0.361    296.0
2048.0     0.361    297.0
2049.0     0.361    298.0
2050.0     0.362    299.0
2051.0     0.362    299.9
2052.0     0.362    300.9
2053.0     0.362    301.9
2054.0     0.362    302.9
2055.0     0.362    303.9
2056.0     0.361    304.9
2057.0     0.361    305.9
2058.0     0.361    306.9
2059.0     0.361    307.9
2060.0     0.360    308.8
2061.0     0.360    309.8
2062.0     0.359    310.8
2063.0     0.359    311.8
2064.0     0.358    312.8
2065.0     0.358    313.9
2066.0     0.357    314.9
2067.0     0.356    315.9
2068.0     0.355    316.9
2069.0     0.354    317.9
2070.0     0.353    319.0
2071.0     0.352    320.0
2072.0     0.350    321.1
2073.0     0.349    322.1
2074.0     0.347    323.2
2075.0     0.346    324.3
2076.0     0.344    325.3
2077.0     0.342    326.4
2078.0     0.340    327.5
2079.0     0.338    328.7
2080.0     0.336    329.8
2081.0     0.333    331.0
2082.0     0.331    332.1
2083.0     0.328    333.3
2084.0     0.325    334.5
2085.0     0.322    335.8
2086.0     0.319    337.0
2087.0     0.315    338.3
2088.0     0.311    339.6
2089.0     0.307    341.0
2090.0     0.303    342.4
2091.0     0.298    343.8
2092.0     0.294    345.3
2093.0     0.289    346.8
2094.0     0.283    348.4
2095.0     0.277    350.0
2096.0     0.271    351.7
2097.0     0.264    353.5
2098.0     0.257    355.4
2099.0     0.250    357.4






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0.


Acknowledgements
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.


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